Department of Cardiac Surgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
Corresponding author. Department of Cardiac Surgery, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China. Tel: +86-21-64370045; fax: +86-21-666958; e-mail: [email protected] (Q. Zhao).
Received September 20, 2011
Accepted October 4, 2011
